3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
6 * parts Copyright 1985, 1990, 1993 Free Software Foundation, Inc.
8 * \author Ivan Schreter
9 * \author Dirk Niggemann
10 * \author Asger Alstrup
11 * \author Lars Gullik Bjønnes
12 * \author Jean-Marc Lasgouttes
13 * \author Angus Leeming
17 * Full author contact details are available in file CREDITS.
19 * General path-mangling functions
24 #include "support/convert.h"
25 #include "support/environment.h"
26 #include "support/filetools.h"
27 #include "support/fs_extras.h"
28 #include "support/lstrings.h"
29 #include "support/lyxlib.h"
30 #include "support/os.h"
31 #include "support/package.h"
32 #include "support/path.h"
33 #include "support/systemcall.h"
35 // FIXME Interface violation
39 #include <boost/assert.hpp>
40 #include <boost/filesystem/operations.hpp>
41 #include <boost/regex.hpp>
54 #ifndef CXX_GLOBAL_CSTD
65 using std::ostringstream;
68 namespace fs = boost::filesystem;
73 bool isLyXFilename(string const & filename)
75 return suffixIs(ascii_lowercase(filename), ".lyx");
79 bool isSGMLFilename(string const & filename)
81 return suffixIs(ascii_lowercase(filename), ".sgml");
85 string const latex_path(string const & original_path,
86 latex_path_extension extension,
89 // On cygwin, we may need windows or posix style paths.
90 string path = os::latex_path(original_path);
91 path = subst(path, "~", "\\string~");
92 if (path.find(' ') != string::npos) {
93 // We can't use '"' because " is sometimes active (e.g. if
94 // babel is loaded with the "german" option)
95 if (extension == EXCLUDE_EXTENSION) {
96 // ChangeExtension calls os::internal_path internally
97 // so don't use it to remove the extension.
98 string const ext = getExtension(path);
99 string const base = ext.empty() ?
101 path.substr(0, path.length() - ext.length() - 1);
102 // ChangeExtension calls os::internal_path internally
103 // so don't use it to re-add the extension.
104 path = "\\string\"" + base + "\\string\"." + ext;
106 path = "\\string\"" + path + "\\string\"";
110 return dots == ESCAPE_DOTS ? subst(path, ".", "\\lyxdot ") : path;
114 // Substitutes spaces with underscores in filename (and path)
115 string const makeLatexName(string const & file)
117 string name = onlyFilename(file);
118 string const path = onlyPath(file);
120 for (string::size_type i = 0; i < name.length(); ++i)
121 name[i] &= 0x7f; // set 8th bit to 0
123 // ok so we scan through the string twice, but who cares.
124 string const keep = "abcdefghijklmnopqrstuvwxyz"
125 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
126 "@!\"'()*+,-./0123456789:;<=>?[]`|";
128 string::size_type pos = 0;
129 while ((pos = name.find_first_not_of(keep, pos)) != string::npos)
132 return addName(path, name);
136 string const quoteName(string const & name, quote_style style)
140 // This does not work for filenames containing " (windows)
141 // or ' (all other OSes). This can't be changed easily, since
142 // we would need to adapt the command line parser in
143 // Forkedcall::generateChild. Therefore we don't pass user
144 // filenames to child processes if possible. We store them in
145 // a python script instead, where we don't have these
147 return (os::shell() == os::UNIX) ?
151 return "\"" + subst(subst(name, "\\", "\\\\"), "\"", "\\\"")
154 // shut up stupid compiler
159 bool isFileReadable(FileName const & filename)
161 std::string const path = filename.toFilesystemEncoding();
162 return fs::exists(path) && !fs::is_directory(path) && fs::is_readable(path);
166 //returns true: dir writeable
167 // false: not writeable
168 bool isDirWriteable(string const & path)
170 lyxerr[Debug::FILES] << "isDirWriteable: " << path << endl;
172 string const tmpfl = tempName(path, "lyxwritetest");
177 unlink(FileName(tmpfl));
182 // Uses a string of paths separated by ";"s to find a file to open.
183 // Can't cope with pathnames with a ';' in them. Returns full path to file.
184 // If path entry begins with $$LyX/, use system_lyxdir
185 // If path entry begins with $$User/, use user_lyxdir
186 // Example: "$$User/doc;$$LyX/doc"
187 FileName const fileOpenSearch(string const & path, string const & name,
192 bool notfound = true;
193 string tmppath = split(path, path_element, ';');
195 while (notfound && !path_element.empty()) {
196 path_element = os::internal_path(path_element);
197 if (!suffixIs(path_element, '/'))
199 path_element = subst(path_element, "$$LyX",
200 package().system_support());
201 path_element = subst(path_element, "$$User",
202 package().user_support());
204 real_file = fileSearch(path_element, name, ext);
206 if (real_file.empty()) {
208 tmppath = split(tmppath, path_element, ';');
209 } while (!tmppath.empty() && path_element.empty());
218 /// Returns a vector of all files in directory dir having extension ext.
219 vector<string> const dirList(string const & dir, string const & ext)
221 // EXCEPTIONS FIXME. Rewrite needed when we turn on exceptions. (Lgb)
222 vector<string> dirlist;
224 if (!(fs::exists(dir) && fs::is_directory(dir))) {
226 << "Directory \"" << dir
227 << "\" does not exist to DirList." << endl;
232 if (!ext.empty() && ext[0] != '.')
236 fs::directory_iterator dit(dir);
237 fs::directory_iterator end;
238 for (; dit != end; ++dit) {
239 string const & fil = dit->leaf();
240 if (suffixIs(fil, extension)) {
241 dirlist.push_back(fil);
248 // Returns the real name of file name in directory path, with optional
250 FileName const fileSearch(string const & path, string const & name,
253 // if `name' is an absolute path, we ignore the setting of `path'
254 // Expand Environmentvariables in 'name'
255 string const tmpname = replaceEnvironmentPath(name);
256 FileName fullname(makeAbsPath(tmpname, path));
257 // search first without extension, then with it.
258 if (isFileReadable(fullname))
262 fullname = FileName(changeExtension(fullname.absFilename(), ext));
263 return isFileReadable(fullname) ? fullname : FileName();
267 // Search the file name.ext in the subdirectory dir of
269 // 2) build_lyxdir (if not empty)
271 FileName const libFileSearch(string const & dir, string const & name,
274 FileName fullname = fileSearch(addPath(package().user_support(), dir),
276 if (!fullname.empty())
279 if (!package().build_support().empty())
280 fullname = fileSearch(addPath(package().build_support(), dir),
282 if (!fullname.empty())
285 return fileSearch(addPath(package().system_support(), dir), name, ext);
289 FileName const i18nLibFileSearch(string const & dir, string const & name,
292 // the following comments are from intl/dcigettext.c. We try
293 // to mimick this behaviour here.
294 /* The highest priority value is the `LANGUAGE' environment
295 variable. But we don't use the value if the currently
296 selected locale is the C locale. This is a GNU extension. */
297 /* [Otherwise] We have to proceed with the POSIX methods of
298 looking to `LC_ALL', `LC_xxx', and `LANG'. */
300 string lang = getEnv("LC_ALL");
302 lang = getEnv("LC_MESSAGES");
304 lang = getEnv("LANG");
310 string const language = getEnv("LANGUAGE");
311 if (lang != "C" && lang != "POSIX" && !language.empty())
315 lang = split(lang, l, ':');
316 while (!l.empty() && l != "C" && l != "POSIX") {
317 FileName const tmp = libFileSearch(dir,
318 token(l, '_', 0) + '_' + name,
322 lang = split(lang, l, ':');
325 return libFileSearch(dir, name, ext);
329 string const libScriptSearch(string const & command_in, quote_style style)
331 static string const token_scriptpath = "$$s/";
333 string command = command_in;
334 // Find the starting position of "$$s/"
335 string::size_type const pos1 = command.find(token_scriptpath);
336 if (pos1 == string::npos)
338 // Find the end of the "$$s/some_subdir/some_script" word within
339 // command. Assumes that the script name does not contain spaces.
340 string::size_type const start_script = pos1 + 4;
341 string::size_type const pos2 = command.find(' ', start_script);
342 string::size_type const size_script = pos2 == string::npos?
343 (command.size() - start_script) : pos2 - start_script;
345 // Does this script file exist?
346 string const script =
347 libFileSearch(".", command.substr(start_script, size_script)).absFilename();
349 if (script.empty()) {
350 // Replace "$$s/" with ""
351 command.erase(pos1, 4);
353 // Replace "$$s/foo/some_script" with "<path to>/some_script".
354 string::size_type const size_replace = size_script + 4;
355 command.replace(pos1, size_replace, quoteName(script, style));
364 FileName const createTmpDir(FileName const & tempdir, string const & mask)
367 << "createTmpDir: tempdir=`" << tempdir << "'\n"
368 << "createTmpDir: mask=`" << mask << '\'' << endl;
370 string const tmpfl = tempName(tempdir.absFilename(), mask);
371 // lyx::tempName actually creates a file to make sure that it
372 // stays unique. So we have to delete it before we can create
373 // a dir with the same name. Note also that we are not thread
374 // safe because of the gap between unlink and mkdir. (Lgb)
375 unlink(FileName(tmpfl));
377 if (tmpfl.empty() || mkdir(FileName(tmpfl), 0700)) {
378 lyxerr << "LyX could not create the temporary directory '"
379 << tmpfl << "'" << endl;
383 return FileName(tmpfl);
389 bool destroyDir(string const & tmpdir)
392 return fs::remove_all(tmpdir) > 0;
393 } catch (fs::filesystem_error const & fe){
394 lyxerr << "Could not delete " << tmpdir << ". (" << fe.what() << ")" << std::endl;
400 string const createBufferTmpDir()
403 // We are in our own directory. Why bother to mangle name?
404 // In fact I wrote this code to circumvent a problematic behaviour
405 // (bug?) of EMX mkstemp().
407 package().temp_dir() + "/lyx_tmpbuf" +
408 convert<string>(count++);
410 if (mkdir(FileName(tmpfl), 0777)) {
411 lyxerr << "LyX could not create the temporary directory '"
412 << tmpfl << "'" << endl;
419 FileName const createLyXTmpDir(FileName const & deflt)
421 if (!deflt.empty() && deflt.absFilename() != "/tmp") {
422 if (mkdir(deflt, 0777)) {
423 if (isDirWriteable(deflt.absFilename())) {
424 // deflt could not be created because it
425 // did exist already, so let's create our own
427 return createTmpDir(deflt, "lyx_tmpdir");
429 // some other error occured.
430 return createTmpDir(FileName("/tmp"), "lyx_tmpdir");
435 return createTmpDir(FileName("/tmp"), "lyx_tmpdir");
440 bool createDirectory(string const & path, int permission)
442 string temp = rtrim(os::internal_path(path), "/");
443 BOOST_ASSERT(!temp.empty());
444 return mkdir(FileName(temp), permission) == 0;
448 // Strip filename from path name
449 string const onlyPath(string const & filename)
451 // If empty filename, return empty
452 if (filename.empty())
455 // Find last / or start of filename
456 string::size_type j = filename.rfind('/');
457 return j == string::npos ? "./" : filename.substr(0, j + 1);
461 // Convert relative path into absolute path based on a basepath.
462 // If relpath is absolute, just use that.
463 // If basepath is empty, use CWD as base.
464 string const makeAbsPath(string const & relPath, string const & basePath)
466 // checks for already absolute path
467 if (os::is_absolute_path(relPath))
470 // Copies given paths
471 string tempRel = os::internal_path(relPath);
472 // Since TempRel is NOT absolute, we can safely replace "//" with "/"
473 tempRel = subst(tempRel, "//", "/");
477 if (os::is_absolute_path(basePath))
480 tempBase = addPath(getcwd(), basePath);
482 // Handle /./ at the end of the path
483 while (suffixIs(tempBase, "/./"))
484 tempBase.erase(tempBase.length() - 2);
486 // processes relative path
487 string rTemp = tempRel;
490 while (!rTemp.empty()) {
492 rTemp = split(rTemp, temp, '/');
494 if (temp == ".") continue;
496 // Remove one level of TempBase
497 string::difference_type i = tempBase.length() - 2;
500 while (i > 0 && tempBase[i] != '/')
503 tempBase.erase(i, string::npos);
506 } else if (temp.empty() && !rTemp.empty()) {
507 tempBase = os::current_root() + rTemp;
510 // Add this piece to TempBase
511 if (!suffixIs(tempBase, '/'))
517 // returns absolute path
518 return os::internal_path(tempBase);
522 // Correctly append filename to the pathname.
523 // If pathname is '.', then don't use pathname.
524 // Chops any path of filename.
525 string const addName(string const & path, string const & fname)
527 string const basename = onlyFilename(fname);
530 if (path != "." && path != "./" && !path.empty()) {
531 buf = os::internal_path(path);
532 if (!suffixIs(path, '/'))
536 return buf + basename;
540 // Strips path from filename
541 string const onlyFilename(string const & fname)
546 string::size_type j = fname.rfind('/');
547 if (j == string::npos) // no '/' in fname
551 return fname.substr(j + 1);
555 /// Returns true is path is absolute
556 bool absolutePath(string const & path)
558 return os::is_absolute_path(path);
562 // Create absolute path. If impossible, don't do anything
563 // Supports ./ and ~/. Later we can add support for ~logname/. (Asger)
564 string const expandPath(string const & path)
566 // checks for already absolute path
567 string rTemp = replaceEnvironmentPath(path);
568 if (os::is_absolute_path(rTemp))
572 string const copy = rTemp;
575 rTemp = split(rTemp, temp, '/');
578 return getcwd() + '/' + rTemp;
581 return package().home_dir() + '/' + rTemp;
584 return makeAbsPath(copy);
586 // Don't know how to handle this
591 // Normalize a path. Constracts path/../path
592 // Can't handle "../../" or "/../" (Asger)
593 // Also converts paths like /foo//bar ==> /foo/bar
594 string const normalizePath(string const & path)
596 // Normalize paths like /foo//bar ==> /foo/bar
597 static boost::regex regex("/{2,}");
598 string const tmppath = boost::regex_merge(path, regex, "/");
600 fs::path const npath = fs::path(tmppath, fs::no_check).normalize();
602 if (!npath.is_complete())
603 return "./" + npath.string() + '/';
605 return npath.string() + '/';
609 string const getFileContents(FileName const & fname)
611 string const encodedname = fname.toFilesystemEncoding();
612 if (fs::exists(encodedname)) {
613 ifstream ifs(encodedname.c_str());
621 lyxerr << "LyX was not able to read file '" << fname << '\'' << endl;
626 // Search the string for ${VAR} and $VAR and replace VAR using getenv.
627 string const replaceEnvironmentPath(string const & path)
629 // ${VAR} is defined as
630 // $\{[A-Za-z_][A-Za-z_0-9]*\}
631 static string const envvar_br = "[$]\\{([A-Za-z_][A-Za-z_0-9]*)\\}";
633 // $VAR is defined as:
634 // $\{[A-Za-z_][A-Za-z_0-9]*\}
635 static string const envvar = "[$]([A-Za-z_][A-Za-z_0-9]*)";
637 static boost::regex envvar_br_re("(.*)" + envvar_br + "(.*)");
638 static boost::regex envvar_re("(.*)" + envvar + "(.*)");
641 string result = path;
643 regex_match(result, what, envvar_br_re);
644 if (!what[0].matched) {
645 regex_match(result, what, envvar_re);
646 if (!what[0].matched)
649 result = what.str(1) + getEnv(what.str(2)) + what.str(3);
655 // Make relative path out of two absolute paths
656 string const makeRelPath(string const & abspath, string const & basepath)
657 // Makes relative path out of absolute path. If it is deeper than basepath,
658 // it's easy. If basepath and abspath share something (they are all deeper
659 // than some directory), it'll be rendered using ..'s. If they are completely
660 // different, then the absolute path will be used as relative path.
662 string::size_type const abslen = abspath.length();
663 string::size_type const baselen = basepath.length();
665 string::size_type i = os::common_path(abspath, basepath);
668 // actually no match - cannot make it relative
672 // Count how many dirs there are in basepath above match
673 // and append as many '..''s into relpath
675 string::size_type j = i;
676 while (j < baselen) {
677 if (basepath[j] == '/') {
678 if (j + 1 == baselen)
685 // Append relative stuff from common directory to abspath
686 if (abspath[i] == '/')
688 for (; i < abslen; ++i)
691 if (suffixIs(buf, '/'))
692 buf.erase(buf.length() - 1);
693 // Substitute empty with .
700 // Append sub-directory(ies) to a path in an intelligent way
701 string const addPath(string const & path, string const & path_2)
704 string const path2 = os::internal_path(path_2);
706 if (!path.empty() && path != "." && path != "./") {
707 buf = os::internal_path(path);
708 if (path[path.length() - 1] != '/')
712 if (!path2.empty()) {
713 string::size_type const p2start = path2.find_first_not_of('/');
714 string::size_type const p2end = path2.find_last_not_of('/');
715 string const tmp = path2.substr(p2start, p2end - p2start + 1);
723 Change extension of oldname to extension.
724 Strips path off if no_path == true.
725 If no extension on oldname, just appends.
727 string const changeExtension(string const & oldname, string const & extension)
729 string::size_type const last_slash = oldname.rfind('/');
730 string::size_type last_dot = oldname.rfind('.');
731 if (last_dot < last_slash && last_slash != string::npos)
732 last_dot = string::npos;
735 // Make sure the extension starts with a dot
736 if (!extension.empty() && extension[0] != '.')
737 ext= '.' + extension;
741 return os::internal_path(oldname.substr(0, last_dot) + ext);
745 string const removeExtension(string const & name)
747 return changeExtension(name, string());
751 /// Return the extension of the file (not including the .)
752 string const getExtension(string const & name)
754 string::size_type const last_slash = name.rfind('/');
755 string::size_type const last_dot = name.rfind('.');
756 if (last_dot != string::npos &&
757 (last_slash == string::npos || last_dot > last_slash))
758 return name.substr(last_dot + 1,
759 name.length() - (last_dot + 1));
765 // the different filetypes and what they contain in one of the first lines
766 // (dots are any characters). (Herbert 20020131)
769 // EPS %!PS-Adobe-3.0 EPSF...
776 // PBM P1... or P4 (B/W)
777 // PGM P2... or P5 (Grayscale)
778 // PPM P3... or P6 (color)
779 // PS %!PS-Adobe-2.0 or 1.0, no "EPSF"!
780 // SGI \001\332... (decimal 474)
782 // TIFF II... or MM...
784 // XPM /* XPM */ sometimes missing (f.ex. tgif-export)
785 // ...static char *...
786 // XWD \000\000\000\151 (0x00006900) decimal 105
788 // GZIP \037\213 http://www.ietf.org/rfc/rfc1952.txt
789 // ZIP PK... http://www.halyava.ru/document/ind_arch.htm
790 // Z \037\235 UNIX compress
792 string const getFormatFromContents(FileName const & filename)
795 if (filename.empty() || !isFileReadable(filename))
798 ifstream ifs(filename.toFilesystemEncoding().c_str());
800 // Couldn't open file...
804 static string const gzipStamp = "\037\213";
807 static string const zipStamp = "PK";
810 static string const compressStamp = "\037\235";
812 // Maximum strings to read
813 int const max_count = 50;
818 bool firstLine = true;
819 while ((count++ < max_count) && format.empty()) {
821 lyxerr[Debug::GRAPHICS]
822 << "filetools(getFormatFromContents)\n"
823 << "\tFile type not recognised before EOF!"
829 string const stamp = str.substr(0, 2);
830 if (firstLine && str.size() >= 2) {
831 // at first we check for a zipped file, because this
832 // information is saved in the first bytes of the file!
833 // also some graphic formats which save the information
834 // in the first line, too.
835 if (prefixIs(str, gzipStamp)) {
838 } else if (stamp == zipStamp) {
841 } else if (stamp == compressStamp) {
845 } else if (stamp == "BM") {
848 } else if (stamp == "\001\332") {
852 // Don't need to use str.at(0), str.at(1) because
853 // we already know that str.size() >= 2
854 } else if (str[0] == 'P') {
870 } else if ((stamp == "II") || (stamp == "MM")) {
873 } else if (prefixIs(str,"%TGIF")) {
876 } else if (prefixIs(str,"#FIG")) {
879 } else if (prefixIs(str,"GIF")) {
882 } else if (str.size() > 3) {
883 int const c = ((str[0] << 24) & (str[1] << 16) &
884 (str[2] << 8) & str[3]);
895 else if (contains(str,"EPSF"))
896 // dummy, if we have wrong file description like
897 // %!PS-Adobe-2.0EPSF"
900 else if (contains(str,"Grace"))
903 else if (contains(str,"JFIF"))
906 else if (contains(str,"%PDF"))
909 else if (contains(str,"PNG"))
912 else if (contains(str,"%!PS-Adobe")) {
915 if (contains(str,"EPSF"))
921 else if (contains(str,"_bits[]"))
924 else if (contains(str,"XPM") || contains(str, "static char *"))
927 else if (contains(str,"BITPIX"))
931 if (!format.empty()) {
932 lyxerr[Debug::GRAPHICS]
933 << "Recognised Fileformat: " << format << endl;
937 lyxerr[Debug::GRAPHICS]
938 << "filetools(getFormatFromContents)\n"
939 << "\tCouldn't find a known format!\n";
944 /// check for zipped file
945 bool zippedFile(FileName const & name)
947 string const type = getFormatFromContents(name);
948 if (contains("gzip zip compress", type) && !type.empty())
954 string const unzippedFileName(string const & zipped_file)
956 string const ext = getExtension(zipped_file);
957 if (ext == "gz" || ext == "z" || ext == "Z")
958 return changeExtension(zipped_file, string());
959 return "unzipped_" + zipped_file;
963 FileName const unzipFile(FileName const & zipped_file, string const & unzipped_file)
965 FileName const tempfile = FileName(unzipped_file.empty() ?
966 unzippedFileName(zipped_file.toFilesystemEncoding()) :
969 string const command = "gunzip -c " +
970 zipped_file.toFilesystemEncoding() + " > " +
971 tempfile.toFilesystemEncoding();
973 one.startscript(Systemcall::Wait, command);
974 // test that command was executed successfully (anon)
975 // yes, please do. (Lgb)
980 docstring const makeDisplayPath(string const & path, unsigned int threshold)
983 string const home = package().home_dir();
985 // replace /home/blah with ~/
986 if (!home.empty() && prefixIs(str, home))
987 str = subst(str, home, "~");
989 if (str.length() <= threshold)
990 return lyx::from_utf8(os::external_path(str));
992 string const prefix = ".../";
995 while (str.length() > threshold)
996 str = split(str, temp, '/');
998 // Did we shorten everything away?
1000 // Yes, filename itself is too long.
1001 // Pick the start and the end of the filename.
1002 str = onlyFilename(path);
1003 string const head = str.substr(0, threshold / 2 - 3);
1005 string::size_type len = str.length();
1007 str.substr(len - threshold / 2 - 2, len - 1);
1008 str = head + "..." + tail;
1011 return lyx::from_utf8(os::external_path(prefix + str));
1015 bool readLink(string const & file, string & link, bool resolve)
1017 #ifdef HAVE_READLINK
1018 char linkbuffer[512];
1019 // Should be PATH_MAX but that needs autconf support
1020 int const nRead = ::readlink(file.c_str(),
1021 linkbuffer, sizeof(linkbuffer) - 1);
1024 linkbuffer[nRead] = '\0'; // terminator
1026 link = makeAbsPath(linkbuffer, onlyPath(file));
1036 cmd_ret const runCommand(string const & cmd)
1038 // FIXME: replace all calls to RunCommand with ForkedCall
1039 // (if the output is not needed) or the code in ispell.C
1040 // (if the output is needed).
1042 // One question is if we should use popen or
1043 // create our own popen based on fork, exec, pipe
1044 // of course the best would be to have a
1045 // pstream (process stream), with the
1046 // variants ipstream, opstream
1048 #if defined (HAVE_POPEN)
1049 FILE * inf = ::popen(cmd.c_str(), os::popen_read_mode());
1050 #elif defined (HAVE__POPEN)
1051 FILE * inf = ::_popen(cmd.c_str(), os::popen_read_mode());
1053 #error No popen() function.
1056 // (Claus Hentschel) Check if popen was succesful ;-)
1058 lyxerr << "RunCommand:: could not start child process" << endl;
1059 return make_pair(-1, string());
1065 ret += static_cast<char>(c);
1069 #if defined (HAVE_PCLOSE)
1070 int const pret = pclose(inf);
1071 #elif defined (HAVE__PCLOSE)
1072 int const pret = _pclose(inf);
1074 #error No pclose() function.
1078 perror("RunCommand:: could not terminate child process");
1080 return make_pair(pret, ret);
1084 FileName const findtexfile(string const & fil, string const & /*format*/)
1086 /* There is no problem to extend this function too use other
1087 methods to look for files. It could be setup to look
1088 in environment paths and also if wanted as a last resort
1089 to a recursive find. One of the easier extensions would
1090 perhaps be to use the LyX file lookup methods. But! I am
1091 going to implement this until I see some demand for it.
1095 // If the file can be found directly, we just return a
1096 // absolute path version of it.
1097 FileName const absfile(makeAbsPath(fil));
1098 if (fs::exists(absfile.toFilesystemEncoding()))
1101 // No we try to find it using kpsewhich.
1102 // It seems from the kpsewhich manual page that it is safe to use
1103 // kpsewhich without --format: "When the --format option is not
1104 // given, the search path used when looking for a file is inferred
1105 // from the name given, by looking for a known extension. If no
1106 // known extension is found, the search path for TeX source files
1108 // However, we want to take advantage of the format sine almost all
1109 // the different formats has environment variables that can be used
1110 // to controll which paths to search. f.ex. bib looks in
1111 // BIBINPUTS and TEXBIB. Small list follows:
1112 // bib - BIBINPUTS, TEXBIB
1114 // graphic/figure - TEXPICTS, TEXINPUTS
1115 // ist - TEXINDEXSTYLE, INDEXSTYLE
1116 // pk - PROGRAMFONTS, PKFONTS, TEXPKS, GLYPHFONTS, TEXFONTS
1118 // tfm - TFMFONTS, TEXFONTS
1119 // This means that to use kpsewhich in the best possible way we
1120 // should help it by setting additional path in the approp. envir.var.
1121 string const kpsecmd = "kpsewhich " + fil;
1123 cmd_ret const c = runCommand(kpsecmd);
1125 lyxerr[Debug::LATEX] << "kpse status = " << c.first << '\n'
1126 << "kpse result = `" << rtrim(c.second, "\n")
1129 return FileName(os::internal_path(rtrim(c.second, "\n\r")));
1135 void removeAutosaveFile(string const & filename)
1137 string a = onlyPath(filename);
1139 a += onlyFilename(filename);
1141 FileName const autosave(a);
1142 if (fs::exists(autosave.toFilesystemEncoding()))
1147 void readBB_lyxerrMessage(FileName const & file, bool & zipped,
1148 string const & message)
1150 lyxerr[Debug::GRAPHICS] << "[readBB_from_PSFile] "
1151 << message << std::endl;
1152 #ifdef WITH_WARNINGS
1153 #warning Why is this func deleting a file? (Lgb)
1160 string const readBB_from_PSFile(FileName const & file)
1162 // in a (e)ps-file it's an entry like %%BoundingBox:23 45 321 345
1163 // It seems that every command in the header has an own line,
1164 // getline() should work for all files.
1165 // On the other hand some plot programs write the bb at the
1166 // end of the file. Than we have in the header:
1167 // %%BoundingBox: (atend)
1168 // In this case we must check the end.
1169 bool zipped = zippedFile(file);
1170 FileName const file_ = zipped ? unzipFile(file) : file;
1171 string const format = getFormatFromContents(file_);
1173 if (format != "eps" && format != "ps") {
1174 readBB_lyxerrMessage(file_, zipped,"no(e)ps-format");
1178 static boost::regex bbox_re(
1179 "^%%BoundingBox:\\s*([[:digit:]]+)\\s+([[:digit:]]+)\\s+([[:digit:]]+)\\s+([[:digit:]]+)");
1180 std::ifstream is(file_.toFilesystemEncoding().c_str());
1185 if (regex_match(s, what, bbox_re)) {
1186 // Our callers expect the tokens in the string
1187 // separated by single spaces.
1188 // FIXME: change return type from string to something
1191 os << what.str(1) << ' ' << what.str(2) << ' '
1192 << what.str(3) << ' ' << what.str(4);
1193 string const bb = os.str();
1194 readBB_lyxerrMessage(file_, zipped, bb);
1198 readBB_lyxerrMessage(file_, zipped, "no bb found");
1203 int compare_timestamps(FileName const & filename1, FileName const & filename2)
1205 // If the original is newer than the copy, then copy the original
1206 // to the new directory.
1208 string const file1 = filename1.toFilesystemEncoding();
1209 string const file2 = filename2.toFilesystemEncoding();
1211 if (fs::exists(file1) && fs::exists(file2)) {
1212 double const tmp = difftime(fs::last_write_time(file1),
1213 fs::last_write_time(file2));
1215 cmp = tmp > 0 ? 1 : -1;
1217 } else if (fs::exists(file1)) {
1219 } else if (fs::exists(file2)) {
1226 } //namespace support